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University of MarylandDepartment of Civil and Environmental
Engineering
ENCE 412 Unit Operations of Environmental Engineering
Examination ofunit operations and processes encountered in
environmentalengineering field. Fundamental principles learned
from
previous classes will be applied into the design andoperation of
unit operations and processes, particularly in
the area of water and wastewater treatment. Similarprocesses
will be applied to air pollution control, solidwaste disposal and
hazardous waste treatment.
Prerequisites: ENCE 305, ENCE 310
Spring 2004: T, Th 2:00 pm - 3:15 pm
Text: Unit Operations and Processes in EnvironmentalEngineering,
2nd. ed., T.D. Reynolds & P.A. Richards, PWS
Publishing, 1996.
Grading Homework (~8) & Quizzes ~ 100 pts2 Midterm Exams @
100 pts ea. 200 ptsFinal Exam 150 pts
Total ~ 450 pts
Instructor Allen P. Davis, Ph.D., PE1151 Martin
Hall301-405-1958
[email protected]
Office Hours Tu, Th 9:30-11:0012:30-2:00
Eric A. Seagren, Ph.D.1149 Martin Hall.301-405-4828
[email protected]
T, Th 9:15-11:156:15-6:45 PM
W 11:00-12 noon
or by appointment
Homework assignments are due one week after they are handed out,
or as specified. A penalty of20% will be deducted for each calendar
day that the assignment is late, beginning at the end of the
class period. However, no credit will be given for homework
turned in after it is posted ordiscussed in class. This provides
for only a short window for late homework.
Homework should be done in a professional manner and look
appropriately. All homeworkshould be neat. Engineering paper is
preferred, but any paper, 8 x 11", is acceptable as long as
it does not have a ragged edge from being torn out of a
notebook. Graphs should be ongraph/engineering paper or computer
drawn. Showing work and proper methodology is as
important as the final answer. Text and clear explanation of the
solution should accompany thesolution. Any computer calculations
should have a sample calculation worked out by hand.
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Having the right answer numerically does not ensure full credit
if the presentation of the solutionis not clear.
Some spreadsheet work may be necessary. Spreadsheet solutions
should have accompanying
concise written explanations and descriptions. Also, sample
calculations worked out by handshould be included.
Unannounced quizzes may be given during any class time. Quizzes
will usually be very short.
Current information regarding the class, announcements,
handouts, web links, homeworkassignments and solutions will be
posted at the Clark School Blackboard class web site at:
www.ajconline.umd.edu
This is a secure site for this class only and will require logon
and password
Course Goals To learn the concepts and design of the basic unit
operations employed toimprove the quality of water, air, and
soil.
Course Topic Lectures Text Chapter
Introduction 1 1-3
Water Quantity and Quality 1 4 & 5
Process Overviews 1 6
Separation
Sedimentation 2 9
Filtration 2 10
Coagulation & Flocculation 2 8
Adsorption & Ion Exchange 3 12 & 13
Membrane Processes 1 14
Exam 1 ~ March 11
Applications to Water Treatment 1 6
Preliminary Processes 1 7
Gas Transfer 1 16
Disinfection 1 24
Biological Treatment Processes
Activated Sludge 3 15
Trickling Filters & RBCs 2 17
Advanced Treatments 1 11, 23
Residuals Management 2 19, 20, 21 & 22
Applications to Wastewater Treatment 2 5, 6
Exam 2 ~ May 6
Final Exam: Monday, May 17, 10:30 am-12:30 pm
